Here is the full statement of BCCI
"The BCCI has taken note of the detention by the Mumbai police of Gurunath Meiyappan, who is a member of the team management of Chennai Super Kings.
As an accredited team official, Mr Meiyappan is subject to the provisions of the IPL Operational Rules and the BCCI Anti-Corruption Code for Participants.
Pending further investigations and any subsequent hearing by the BCCI Disciplinary Committee or the IPL Code of Behaviour Committee, Mr Meiyappan has been suspended by the BCCI from any involvement in the sport of cricket and in particular from any involvement with the Chennai Super Kings team.
BCCI officials met with officers from the Mumbai police on the evening of 23 May, and will continue to offer all assistance to the police and regulatory authorities."